JPH01292140A - Quadruple-axle loom - Google Patents

Abstract

PURPOSE:To obtain a quadruple-axle woven fabric having many different kinds of weaves, by providing an oblique yarn creel, oblique yarn traverse device and heald device for oblique yarns and arranging a warp yarn feeder so as to feed warp yarns along the inner surface sides of reciprocating oblique yarn rows. CONSTITUTION:A warp yarn feeder (C) is installed so as to feed warp yarns 1 along the inner surface sides of reciprocating oblique yarn rows to provide a loom capable of rapidly beating weft yarns 2 without disturbing an oblique yarn heald device (D). An oblique yarn creel (A) is annularly arranged and an oblique yarn traverse device (B) is capable of feeding forward oblique yarns 3 and return oblique yarns 4 crossing in mutual opposite oblique directions.

Description

[Detailed Description of the Invention] <Industrial Application Field> In addition to the warp and weft, the present invention provides two
This invention relates to a four-axis loom that weaves a four-axis fabric in which diagonal threads overlap.

<Conventional technology and its problems> Threads or threads intersecting the warp diagonally in the left and right directions can be seen in the ``eight stitch'', an old bamboo knit.

In addition, there is one in which yarns in four axial directions are simply overlapped and integrated by a knitting machine, for example, by raschel knitting. However, there seems to be no evidence of a four-axis fabric made using a loom.

Triaxial textiles, in which two intersecting diagonal threads are treated as warp threads and are woven using the weft threads, have been known as ``diagonal weaving'' since ancient times and have remained in the traditional crafts area for a while. This diagonal weaving is a hand-woven technique in which two reeds on the upper and lower surfaces are moved back and forth in opposite directions from side to side toward the first stitch to make punch stitches, and a device is used to send the diagonal yarn in opposite directions on the top and bottom sides toward the first stitch.

Recently, basket-like triaxial fabrics were developed in 1973-115.
Seen in No. 73, this is said to be applied to summer sashes, shawls, and curtains. A full-fledged three-shaft loom was created in the 5th year of the
This can be seen in No. 9-34812 and Japanese Patent Publication No. 59-36015, which also weave by treating the two diagonal threads as warp threads, opening the diagonal thread and the double diagonal thread, and running the weft threads through these threads. The horizontal movement of the diagonal threads is caused by the movement of the heddle device (belt) in the left-right direction, so that the diagonal threads intersect and are woven.

The reason behind the demand for these triaxial fabrics is to provide isotropy to the strength and elongation of the fabric, and to use thinner fabrics to create fiber-reinforced plastics (
There is a growing momentum to improve the strength and reduce the weight of FRP (FRP) and apply it to reinforced plastic materials for aircraft, automobiles, etc.

It goes without saying that quadriaxial fabrics are superior to triaxial fabrics in imparting isotropy to the strength and elongation of the fabric.

However, as mentioned above, woven fabrics with four axes have not been seen in the past, only a few knitted fabrics with four axes exist, and those knitted with both four axes are only seen in handicrafts.

Productivity is extremely poor, and the method using a knitting machine that integrates yarns stacked on four axes in raschel stitch is complicated in one knitting machine, resulting in poor productivity. (For example, TextileMonth, M
ay 1986. PP 6-7).

The structure of the triaxial loom is disclosed in the above-mentioned publication in a very specific manner, but as mentioned above, it is a mechanism that sends two diagonal threads, which are regarded as warp threads, to the left and right by the movement of a belt, so there is no skipped stitches. It was also experimentally confirmed that it is not suitable for high-speed movement, and that it is difficult to fold the warp threads into the openings of the diagonal threads, making it difficult to adapt to the four axes. Therefore, the present inventors have developed a diagonal yarn feeding device, a traverse device, and a heddle device that are not found in the above-mentioned conventional technology, and have made it possible to weave a four-axis fabric with a new weave structure at high speed. He had previously proposed a loom with a better structure and a new fabric produced by it in Japanese Patent Application No. 235168/1983.

<Problems to be Solved by the Invention> However, it is true that the above-mentioned three-shaft loom could be turned into a four-shaft loom with slight improvements without changing its structure. has been completed.

The characteristics of four-axis textiles are, for example, as shown in Figure 8, warp (1), weft (2), and warp (1).
A diagonal thread (3) and a double diagonal thread (2) diagonally intersect with each other.
4) It is composed of four-sided, four-axis threads, and the top thread is intertwined with the bottom thread, and the intermediate threads on the other two sides are sandwiched and woven together.

What was previously proposed in Japanese Patent Application No. 61-235168 is,
The top thread is the diagonal thread (3), the intermediate thread is the double diagonal thread (4) and the warp thread (1), and the bottom thread is the weft thread (2) (Fig. 8), and the top thread is the warp thread. (1), the middle thread is a diagonal thread (3) and a double diagonal thread (4), and the bottom thread is a weft thread (2) (Fig. 9), both of which are new. It was a four-axis fabric.

On the other hand, in the above-mentioned triaxial fabric, the reciprocating diagonal threads are opened and the weft threads are woven into the weave, so the warp threads are added to this, creating diagonal threads on both the upper and lower surfaces, and the intermediate threads become warp threads, as shown in Figure 10. It becomes a four-axis textile with a new organization.

<Means for Solving the Problems> The present invention is a loom for weaving not only those shown in Figs. 8 and 9 but also a new four-axis fabric as shown in Fig. 10, the configuration of which is as follows. It is as follows.

That is, a diagonal thread creel (A) with an annular arrangement in which a number of bobbins or a plurality of divided beams are rotatably arranged in a plane substantially perpendicular to the direction of movement of the thread, and a diagonal thread creel (A) in which a number of bobbins or a plurality of divided beams are arranged so as to be rotatable in a plane substantially perpendicular to the direction of movement of the thread; A diagonal thread traverse device (B) that supplies a large number of forward diagonal threads (3) and double diagonal threads (4) that move in opposite directions, crossing each other in opposite inclination directions, and a warp thread (1) that supplies warp threads (1) into the slanting section. A warp feeding device (C) including a warp beam (6) for carrying, a diagonal heald device (D), and a weft driving device (
E), a reed beating device (F), and a product winding device (G). This is a four-shaft loom that is characterized by being installed in the

The arrangement of each of these devices is preferably vertical, similar to the three-shaft loom, but it may also be horizontal.

In particular, the present invention is characterized by the guide of the warp from the warp supply device (C), in which the warp (1) is a reciprocating diagonal yarn (3) of a reciprocating diagonal row.
or with a row of fixed levers (7) fed along either or both inner surfaces of the reciprocating threads (4), or all or alternate warp threads (1) Four shafts equipped with a row of heald levers (8) that move between the inner surfaces of the reciprocating diagonal thread (3) and the reverse diagonal thread (4) of the reciprocating diagonal row! l
! It is a machine.

Effect> The warp supply device (C) is installed so that the warp (1) is supplied along the inner surface of the reciprocating diagonal row.

The warp threads do not obstruct the diagonal heddles, and the weft threads can be inserted quickly.

In particular, a fixed lever (7) row in which the warp thread (1) is supplied along the inner surface side of one or both of the forward diagonal thread (3) or the double diagonal thread (4) of the reciprocating diagonal thread row; Alternatively, a row of heald levers (8) in which all or alternate warp threads (1) are fed by moving between the inner surfaces of the forward diagonal threads (3) and double diagonal threads (4) of the reciprocating diagonal row, etc. By using this device, the degree of entanglement with diagonal yarns and warp yarns can be freely changed, and four-axis fabrics with different textures can be obtained.

In other words, a new four-axis fabric with the modified structure shown in FIG. 10, in which the diagonal threads are present on both the upper and lower surfaces of the fabric and the intermediate threads are warp and warp threads, can be obtained.

Hereinafter, the present invention will be explained in detail with reference to Examples.

<Example> Fig. 1 is a schematic side view of a loom of the present invention, in which a diagonal thread creel (A) is arranged on the upper outer periphery of a circular vertical frame, and a warp thread supply device (C) is arranged in the center thereof. .

In the former, a diagonal thread beam (5) such as a large number of bobbins or a plurality of divided diagonal thread beams is supported by a circular rail (12) of a side frame (13) so as to be rotatable in a plane substantially perpendicular to the direction in which the thread travels. , the latter being supported by the top frame (14).

The diagonal thread traverse device (B) is configured to move the diagonal threads in opposite directions as a large number of forward diagonal threads (3) and double diagonal threads (. As shown in Fig. 2, a large number of diagonal threads inserted and supported through diagonal thread guide holes (17) provided in a guide chain (16) move the chain. From sequential diagonal thread (3) to double diagonal thread (4)
It goes around intermittently to and from itself.

The diagonal heald device (D) usually consists of a diagonal guide chain (1
6), with their center lines correctly aligned, but here they are shifted to either the left or right from the center line. Furthermore, when aligning the center threads, a fixed lever (7) or a heddle lever (8) is used. This point is extremely important and will be discussed in detail later.

As the weft driving device (E), the reed driving device (F), and the product winding device (G), conventionally known devices can be used as they are, and they are arranged sequentially from top to bottom.

The heald device (D) is a pressed heddle, and the guide chain (
Belts (18) and (19) push the forward and backward diagonal yarns (3) and backward diagonal yarns (4) moving at the reed (20 )
(21) to form a product roll (22).

In the four-shaft loom of the present invention, the warp supply device (C)
) is installed so as to be supplied along the inner surface of the reciprocating diagonal thread row. Only by doing this could a three-shaft loom be transformed into a four-shaft loom. To do this, first of all, as shown in FIG. It is attached to the inside. Normally, these are placed directly below the diagonal thread guide chain (16) with their center lines aligned correctly.
This would interfere with the insertion of the weft threads, making it impossible to weave. However, with the above structure, even if there are warp threads, the opening is extremely large, so stable weaving is possible.

The second device is by means of a locking lever (7) as shown in FIG. 3 or 4. This is a fixed device arranged so that the warp thread (1) is supplied along the inner surface of either the forward diagonal thread (3) or the double diagonal thread (4) of the reciprocating diagonal thread row, or along the inner surface of both. It consists of a row of levers (7), and the one shown in FIG. 3 is arranged alternately on both sides, and the one shown in FIG. 4 is arranged only on one side of the diagonal thread (4).

The third device is by a heddle lever (8) as shown in FIG. 5 or 6-7. This is a heddle lever arranged so that all or alternately every other warp thread (1) is fed by moving between the inner surfaces of the forward diagonal thread (3) and the reverse diagonal thread (4) of the reciprocating diagonal row. (8) Consists of columns. In Fig. 5, the heald lever (8) is moved by one lever (23) and the rond (24) so that all the warp threads move left and right at once. Figures 7 and 8 are arranged so that alternately every other warp thread (1) is fed by moving between the inner surfaces of the forward diagonal thread (3) and double diagonal thread (4) of the reciprocating diagonal row. It consists of rows of left and right heald levers (8). In this way, it is possible to obtain a plain weave structure in terms of the relationship between the warp and the weft.

<Effects of the Invention> The four-shaft loom having the structure detailed above can freely change the degree of entanglement with the diagonal threads and warp threads by making slight changes or additions to the three-shaft loom. Four-axis fabrics with many different textures can be obtained.

Since quadriaxial fabrics are even better than triaxial fabrics in terms of isotropy in strength and elongation, they can increase the strength of FRP even if they are thinner than conventional fabrics, making them suitable as materials for automobiles and the like.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view of the four-shaft loom of the present invention, FIG. 2 is a plan view of the diagonal thread traverse device, and FIGS. 3 to 7 are side schematic views of the diagonal heddle device. FIGS. 8 to 10 are organization charts of four-axis fabrics. (1) Warp (2) Weft (3) Diagonal (4) Double diagonal (5) Diagonal beam (6) Warp beam (7) Fixed lever
(8) Heald lever (16) Guide chain (17) Diagonal thread guide (18) (19) Belt (20) (2
1) Reed (A) Diagonal thread creel (B) Diagonal thread traverse device (C) Warp supply device (D) Diagonal thread heddle device (E
) Weft driving device ('F) Reed driving device (G) Product winding device

Claims (1)

[Scope of Claims] 1. A diagonal creel (A) in an annular arrangement in which a number of bobbins or a plurality of divided beams are arranged rotatably in a plane substantially perpendicular to the direction of movement of the woven surface, and a diagonal creel (A) arranged approximately within the width of the woven surface. A large number of diagonal threads (3
) and the diagonal yarn (4) in opposite inclination directions to cross each other and supply the diagonal yarn traverse device (B), and the warp yarn (1) into the woven surface.
A warp supply device (C) including a warping beam (6) that supplies
, a diagonal thread heddle device (D), a weft thread driving device (E),
It consists of a reed beating device (F) and a product winding device (G), and the warp supply device (C) is installed so that the warp (1) is supplied along the inner side of the reciprocating diagonal thread row. A four-shaft loom that is characterized by 2. A fixed lever (7) row is provided in which the warp thread (1) is supplied along the inner surface side of one or both of the forward diagonal thread (3) or the double diagonal thread (4) of the reciprocating diagonal thread row. Claim 1 consisting of
The four-shaft loom described. 3. A row of heald levers (8) in which all or alternately every other warp thread (1) is fed by moving between the inner surfaces of the forward diagonal thread (3) and the double diagonal thread (4) of the reciprocating diagonal row. A four-shaft loom according to claim 2.